Mulk toifasi

Muayyan ishlash ko'rsatkichlari

Aisi304 (astenitik)

Aisi316 (Astenitic)

ASISI440C (DREXIK)

Aisi430 (temirchi)

Sinov standarti

Kaifeng Bell Ishlab chiqarish nazorati talablari

Korroziya qarshiligi

Neytral tuz purkaga chidamliligi (5% NACL, 35 daraja)

48 soatdan katta yoki teng (qizil zang)

72 soatdan katta yoki unga teng (taglik yo'q)

24 soatdan katta yoki unga teng (engil zang)

36 soatdan katta yoki unga teng (qizil zang yo'q)

ASTM B117

 1% 进行 72H 盐雾测试, 316 材质需额外通过乙酸盐雾测试 (ASTM G85)

Intergranish korroziyasi qarshiliklari

Passes (65% HNO₃ test)

Passes (65% HNO₃ test)

Muvaffaqiyatsiz (yuqori c)

Paslar (past C)

ASTM A262 usuli c

304L/316L 材质强制进行晶间腐蚀测试,不合格批次直接报废

Kornoziya qarshiligi (pren¹)

~18

~24

~20

~16

ISO 10289

316 Prien 值 23 ga qaraganda katta yoki teng

Jismoniy xususiyatlar

Zichlik (g / sm³, 25 daraja)

7.93

8.00

7.85

7.70

ASTM D792

② ± ± 0,02 g / cm³, 避免材质不纯

Magnit mulk (20 daraja)

- magnitsiz

- magnitsiz

Kuchli magnit

Zaif magnit

ASTM A342

304/316  1,01 (精密电子设备专用批次) dan kam yoki teng

Termal kengaytirish koeffitsienti (10⁻⁶ / 20-100 daraja)

16.9

16.0

11.5

10.4

ASTM E228

高温应用批次 (如 300 darajadan katta yoki teng) 需提供热膨胀曲线

Issiqlik o'tkazuvchanligi (W / k), 25 daraja)

16.2

15.9

24.2

26.8

ASTM D5470

 ± 0,5 Vt / (m kasa) dan kam yoki unga teng

Qayta ishlash ko'rsatkichlari

Mashino'llik (nisbiy 1018 po'latdan)

60%

55%

40%

70%

ISO 3685

440C 材质切削加工时采用专用冷却油,避免加工硬化

Forma (sovuq sarlavhalar)

95% dan katta yoki teng (hech qanday yoriq yo'q)

90% dan katta yoki teng (hech qanday yoriq yo'q)

75% dan kam yoki unga teng (oson yorilish)

85% dan katta yoki teng (yorilish yo'q)

ASTM E290

304/04L 冷镦成型压力控制在 180-200 MPA, 降低废品率

Issiqlikni tozalash moslashuvchanligi

Oson (eritmani yumshatish)

Oson (eritmani yumshatish)

Murakkab (qonni qondirish)

Oddiy (yumshatish)

ASTM A959

440c 热处理温度波动 ± 2 daraja, 确保硬度均匀性

Sirt ishlashi

Sirtli pürürmy (ra, mkm)

0,02 dan kam yoki unga teng

0,02 dan kam yoki unga teng

0,01 dan kam yoki unga teng

0,03 dan kam yoki teng

ASTM B466

成品表面粗糙度 100% 通过激光轮廓仪检测,超差品返工

Yuzaki plavatsiya plyonkasining qalinligi (nm)

8-12

10-15

6-10

7-11

ASTM A967

316 材质钝化后膜厚 12nm dan katta yoki unga teng

Ishqalanish koeffitsienti (quruq ishqalanish, vs 45 # po'lat)

0.55-0.60

0.53-0.58

0.48-0.52

0.58-0.63

ASTM G133

高精密轴承用 440c 球摩擦系数 0,50 dan kam yoki unga teng